/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.phoenix.repository.query.jql;

import javax.jcr.query.InvalidQueryException;
import javax.jcr.query.qom.Selector;

/**
 * Jigsaw server
 * 
 * @author    <a href="shamphone@gmail.com">Li XiongFeng</a>
 * @date      2012-4-21
 * @version   1.0.0
 */
public class SelectorAST extends SourceAST implements Selector {

	/**
	 * 
	 */
	private static final long serialVersionUID = 274018136246454744L;

	/* (non-Javadoc)
	 * @see javax.jcr.query.qom.Selector#getNodeTypeName()
	 */
	@Override
	public String getNodeTypeName() {
		IdentifierAST table = (IdentifierAST) this.getFirstChild();
		return table.getQName();
	}

	/* (non-Javadoc)
	 * @see javax.jcr.query.qom.Selector#getSelectorName()
	 */
	@Override
	public String getSelectorName() {
		return null;
	}

	@Override
	public void generateSQL(JQL2SQL collector) throws InvalidQueryException {
		String tableName = "`"+this.getNodeTypeName()+"`";
		StringBuffer sql =  new StringBuffer(" FROM ");
		sql.append(tableName).append(" JOIN node ON node.pkid=").append(tableName).append(".pkid");
		collector.push(sql.toString());
	}
}
